Goleta, CA 93120 Frost Dates
93120, near Goleta, CA: the frost window
The last spring frost here typically falls around 12/31, about 125 days from today. Fall's first freeze usually shows up around 12/20, roughly 365 days after the last spring frost.
Zone 10b (35 to 40°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Goleta, not a forecast for this year.
Stretching the season past the first frost
Goleta's growing season runs out in roughly 16 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 12/31 isn't a guarantee
12/31 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/29 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/08 and only about 1 year in 10 sees frost after that.
Goleta against the rest of the dataset
At roughly 365 frost-free days, Goleta places 1,038 of 40,283 ZIP codes in this dataset. Within CA, it ranks 451 of 2,555.
Learn more
Two guides worth reading on 93120: local microclimates, on what one yard in Goleta can differ from the 93120 normal, and zone vs. frost date, on why Zone 10b and Goleta's frost date answer different questions.